The drive does read Cds that have already something on it. Also I can write on CDs on which I have already written something but not finalized it. But it wont read blank cds.
So far the only thing that I have not tried, which I think may solve the problem, is that all the blank CDs in my box (which were bought abt 2 years ago) have all somehow got corrupted and may be new CDs will work. But before I go and buy new CDs I want to be sure that problem is not with my computer. I still have abt 12 blank Cds left so I dont want to go shopping just yet.